By high-end he presumably means the iPhone 18 Pro Max and likely also the iPhone 18 Pro, but he doesn’t mention the phones by name. What Kuo does say is that this variable apert

According to Apple analyst Ming-Chi Kuo, the company is working on adding a variable aperture main camera to its iPhone 18 Pro series. That wasn't a typo: We're talking about the iPhone 18 Pro, the one that's likely to arrive in 2026. Yes, we know that's ...

Since at least the iPhone 14 Pro, Apple's Pro model iPhones have featured a fixed aperture lens of f/1.78 on the main camera. A variable aperture enables the camera to control the amount of light entering the lens, which would be helpful in a variety of lighting situations and may bring huge improvements to low-light shooting.